diff --git a/pyproject.toml b/pyproject.toml
index 97d4260..2a1b07f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,6 +18,7 @@ dependencies = [
   "azure-identity>=1.17,<2",
   "azure-keyvault-secrets>=4.9,<5",
   "azure-mgmt-resource>=23.1,<26",
+  "azure-mgmt-resource-deployments>=1.0.0b1,<2",
   "azure-mgmt-resource-subscriptions>=1.0.0b1,<2",
   "azure-mgmt-authorization>=4.0,<5",
   "azure-mgmt-keyvault>=10.3,<11",
diff --git a/src/azurefox/clients/factory.py b/src/azurefox/clients/factory.py
index b6ba680..b5fe887 100644
--- a/src/azurefox/clients/factory.py
+++ b/src/azurefox/clients/factory.py
@@ -12,6 +12,7 @@ class AzureClients:
     subscription_id: str
     subscription: SubscriptionRef
     resource: object
+    resource_deployments: object
     authorization: object
     automation: object
     web: object
@@ -40,6 +41,7 @@ def build_clients(session: AuthSession, requested_subscription: str | None) -> A
         from azure.mgmt.network import NetworkManagementClient
         from azure.mgmt.postgresqlflexibleservers import PostgreSQLManagementClient
         from azure.mgmt.resource import ResourceManagementClient
+        from azure.mgmt.resource.deployments import DeploymentsMgmtClient
         from azure.mgmt.resource.subscriptions import SubscriptionClient
         from azure.mgmt.sql import SqlManagementClient
         from azure.mgmt.storage import StorageManagementClient
@@ -89,6 +91,7 @@ def build_clients(session: AuthSession, requested_subscription: str | None) -> A
         subscription_id=subscription_id,
         subscription=subscription_ref,
         resource=ResourceManagementClient(session.credential, subscription_id),
+        resource_deployments=DeploymentsMgmtClient(session.credential, subscription_id),
         authorization=AuthorizationManagementClient(session.credential, subscription_id),
         automation=AutomationClient(session.credential, subscription_id),
         web=WebSiteManagementClient(session.credential, subscription_id),
diff --git a/src/azurefox/collectors/provider.py b/src/azurefox/collectors/provider.py
index cdad287..a55310b 100644
--- a/src/azurefox/collectors/provider.py
+++ b/src/azurefox/collectors/provider.py
@@ -748,7 +748,8 @@ def arm_deployments(self) -> dict:
         deployments: list[dict] = []
 
         try:
-            for deployment in self.clients.resource.deployments.list_at_subscription_scope():
+            iterator = self.clients.resource_deployments.deployments.list_at_subscription_scope()
+            for deployment in iterator:
                 deployments.append(
                     _deployment_summary(
                         deployment,
@@ -767,7 +768,9 @@ def arm_deployments(self) -> dict:
 
         for resource_group in resource_groups:
             try:
-                iterator = self.clients.resource.deployments.list_by_resource_group(resource_group)
+                iterator = self.clients.resource_deployments.deployments.list_by_resource_group(
+                    resource_group
+                )
                 for deployment in iterator:
                     deployments.append(
                         _deployment_summary(
diff --git a/tests/test_clients_factory.py b/tests/test_clients_factory.py
index 423c7d7..b4c0e59 100644
--- a/tests/test_clients_factory.py
+++ b/tests/test_clients_factory.py
@@ -56,6 +56,7 @@ def __init__(self, credential: object) -> None:
         "azure.mgmt.mysqlflexibleservers": ("MySQLManagementClient",),
         "azure.mgmt.network": ("NetworkManagementClient",),
         "azure.mgmt.postgresqlflexibleservers": ("PostgreSQLManagementClient",),
+        "azure.mgmt.resource.deployments": ("DeploymentsMgmtClient",),
         "azure.mgmt.sql": ("SqlManagementClient",),
         "azure.mgmt.storage": ("StorageManagementClient",),
         "azure.mgmt.web": ("WebSiteManagementClient",),
@@ -96,3 +97,4 @@ def test_build_clients_supports_split_subscription_package(monkeypatch) -> None:
     assert clients.subscription_id == "sub-b"
     assert clients.subscription.display_name == "Beta"
     assert clients.resource.subscription_id == "sub-b"
+    assert clients.resource_deployments.subscription_id == "sub-b"
diff --git a/tests/test_collectors.py b/tests/test_collectors.py
index ce10e41..e4df6e7 100644
--- a/tests/test_collectors.py
+++ b/tests/test_collectors.py
@@ -2306,6 +2306,87 @@ def test_collect_arm_deployments(fixture_provider, options) -> None:
     assert output.deployments[2].name == "kv-secrets"
 
 
+def test_collect_arm_deployments_uses_split_deployments_client(options) -> None:
+    def deployment(
+        name: str,
+        deployment_id: str,
+        *,
+        providers: list[str],
+        outputs_count: int = 0,
+        output_resource_count: int = 0,
+    ) -> SimpleNamespace:
+        return SimpleNamespace(
+            id=deployment_id,
+            name=name,
+            properties=SimpleNamespace(
+                provisioning_state="Succeeded",
+                outputs={f"output-{index}": {} for index in range(outputs_count)},
+                output_resources=[object() for _ in range(output_resource_count)],
+                providers=[SimpleNamespace(namespace=namespace) for namespace in providers],
+                template_link=None,
+                parameters_link=None,
+                mode="Incremental",
+                timestamp="2026-04-18T00:00:00Z",
+                duration="PT1M",
+            ),
+        )
+
+    provider = AzureProvider.__new__(AzureProvider)
+    provider.session = SimpleNamespace(
+        tenant_id="tenant-id",
+        token_source="fixture",
+        auth_mode="fixture",
+    )
+    provider.clients = SimpleNamespace(
+        subscription_id="subscription-id",
+        resource=SimpleNamespace(
+            resource_groups=SimpleNamespace(
+                list=lambda: [SimpleNamespace(name="rg-apps")],
+            )
+        ),
+        resource_deployments=SimpleNamespace(
+            deployments=SimpleNamespace(
+                list_at_subscription_scope=lambda: [
+                    deployment(
+                        "sub-foundation",
+                        (
+                            "/subscriptions/subscription-id/providers/Microsoft.Resources/"
+                            "deployments/sub-foundation"
+                        ),
+                        providers=["Microsoft.Resources"],
+                        outputs_count=2,
+                    )
+                ],
+                list_by_resource_group=lambda resource_group: [
+                    deployment(
+                        "rg-apps-deploy",
+                        (
+                            "/subscriptions/subscription-id/resourceGroups/rg-apps/providers/"
+                            "Microsoft.Resources/deployments/rg-apps-deploy"
+                        ),
+                        providers=["Microsoft.Web"],
+                        output_resource_count=1,
+                    )
+                ]
+                if resource_group == "rg-apps"
+                else [],
+            )
+        ),
+    )
+
+    output = collect_arm_deployments(provider, options)
+
+    assert [item.name for item in output.deployments] == [
+        "sub-foundation",
+        "rg-apps-deploy",
+    ]
+    assert [item.scope_type for item in output.deployments] == [
+        "subscription",
+        "resource_group",
+    ]
+    assert output.issues == []
+
+
 def test_collect_arm_deployments_sorts_failures_and_linked_rows_first(options) -> None:
     output = collect_arm_deployments(DriftOrderingFixtureProvider(Path(".")), options)